PlanetB

This isn’t rocket science, but I did search Google extensively before building my own script.  Save the script as Random_Flickr_Image.php (or whatever) and reference it in your img tag.  For example, <img src=”/images/Random_Flickr_Image.php”/>.

Edit: I’ve updated the script to it works again. Flickr must have updated the image element class from photoImgDiv to photo-div.

<?php
$doc = new DOMDocument();
@$doc->loadHTMLFile("http://www.flickr.com/explore/interesting/7days/");
$xpath = new DOMXpath($doc);
if($xpath){
   $url = $xpath->query("//td[@class='Photo']/span/a/@href");

   @$doc->loadHTMLFile("http://www.flickr.com".$url->item(0)->nodeValue);   
   $xpath = new DOMXpath($doc);
   
   if($xpath){
      $url = $xpath->query("//div[@class='photo-div']/img/@src");
      $im = @imagecreatefromjpeg($url->item(0)->nodeValue);
      if($im){
         header('content-type: image/jpeg');
         imagejpeg($im);
      }else
         echo "error";
   }
}
?>